This document provides an introduction to Business Process Management (BPM) and discusses the benefits and shortcomings of BPM compared to Business Process Reengineering (BPR). It also covers the foundation of BPMN (Business Process Model and Notation) and intermediate BPMN concepts. The document includes explanations, examples, and a corrected BPMN diagram for a complaint checking process. Additionally, it includes a calculation of competitive offers and a bibliography of relevant studies.